- ♪ america - ♪ wilalways stand ♪ history ♪ will write the story ♪ america ♪ will always stand ♪ gerri: if you are looking to upgrade your smart phone, we have tips about how to make money and protect personal data. a ceo joins me now, sergio, it's great to have you. >> thank you for having me. gerri: okay, how much money can you make? >> you try to sell -- if you are going to buy an iphone-5, you're probably in the contract. if you actually have an iphone 4-s, you can sell the 4-s for about $480. gerri: are you kidding me? a routine that much value? >> yes, they do. gerri: let's talk abt the models that are best to sell. i assume that $100 or $280 is not what everyone gets on every model. which model do you suffer the most. you get a lot of money for the newer versions, but it depends on where you are. blackberries are not touching a lot of money, but it is till proment outsidthe u.s. you can get pretty good money r them if you get the android phones, some of the newer ones. there are over 400 models of smart phones. gerri: is crazy. and everyone is stealing these apple iphone is. it